State also proposes prohibiting anyone connected to professional sports from participating in paid contests involving their sports

The Massachusetts attorney general wants to ban anyone younger than 21 from playing daily fantasy sports and impose a host of regulations on the industry.

The announcement, made Thursday by state Attorney General Maura Healey, stopped short of declaring the games illegal. Massachusetts will not follow the lead of New York Attorney general Eric Schneiderman, who this week declared daily fantasy “plainly illegal” and filed suit to...